Corsair

Corsair CMK64GX4M2D3600C18 64GB (2x32GB) Vengeance LPX 3600MHz DDR4 RAM

4.7 (1343 reviews)

64GB of DDR4-3600 in a 34mm low-profile package — Corsair's Vengeance LPX closes the memory bandwidth gap without blocking your CPU cooler.

$114.99*$149.99Save 23%
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*Price sourced from Amazon.com. Last updated:Jun 04, 2026.Price and availability are subject to change.

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Overview

The Corsair Vengeance LPX CMK64GX4M2D3600C18 is a 64GB DDR4 dual-channel kit — two 32GB modules running at 3600MHz with CL18-22-22-42 timings at 1.35V. The 3600MHz speed point is significant beyond the headline number: on AMD Ryzen platforms using Zen 2 and Zen 3 architectures, the Infinity Fabric interconnect runs most efficiently at a 1:1 ratio with memory speed, and 3600MHz is the practical ceiling of that 1:1 zone. Pushing beyond 3800MHz forces a 1:2 divider that increases Infinity Fabric latency, negating the bandwidth gain. The CL18 timings yield a true latency of approximately 10 nanoseconds — on par with DDR4-3200 CL14 kits — meaning this kit trades tight primary timings for raw frequency bandwidth, a trade-off that favors throughput-heavy applications over latency-sensitive micro-benchmarks.

This kit is built for content creators, engineers, and power users who have outgrown 32GB. Video editors working with 4K multi-stream timelines in Resolve or Premiere, developers running multiple virtual machines simultaneously, and 3D artists with complex scenes that exceed 32GB VRAM+RAM budgets will find 64GB provides the headroom to work without paging. The 34mm low-profile heatspreader is a genuine design decision rather than a cost cut — it expands compatibility into SFF ITX builds and compact mATX systems where standard-height RAM would require cooler swaps. Hand-sorted chips with XMP compliance make configuration straightforward, though users populating all four DIMM slots on demanding memory controllers should verify QVL support for 64GB at 3600MHz before assuming plug-and-play stability.

Key Features

Hand-sorted memory chips ensure high performance with generous overclocking headroom

VENGEANCE LPX is optimized for wide compatibility with the latest Intel and AMD DDR4 motherboards

A low-profile height of just 34mm ensures that VENGEANCE LPX even fits in most small-form-factor builds

A high-performance PCB guarantees strong signal quality and stability for superior overclocking ability

A solid aluminum heatspreader efficiently dissipates heat from each module so that they consistently run at high clock speeds

Specifications

Capacity
64GB (2x32GB)
Type
DDR4 RAM
Speed
3600MHz
Model
CMK64GX4M2D3600C18
Module Height
34mm
Heat Spreader Material
Aluminum
Compatibility
Intel and AMD DDR4 motherboards

Pros & Cons

👍 Pros

  • DDR4-3600 speed hits the Ryzen Infinity Fabric's optimal 1:1 clock ratio, delivering measurably better performance on AMD platforms compared to DDR4-3200 kits at the same CAS latency tier.
  • 64GB total capacity (2x32GB) eliminates memory pressure in RAM-intensive workloads — large Premiere Pro timelines, multi-VM setups, and complex 3D scenes run without pagefile fallback.
  • 34mm low-profile height provides genuine physical compatibility advantage in SFF builds where taller kits would conflict with CPU coolers.
  • Hand-sorted chips with an aluminum heatspreader maintain thermal stability at rated speeds, supporting consistent sustained performance under extended load.
  • XMP-compliant profile simplifies setup — a single BIOS toggle unlocks rated speed without manual timing configuration.

👎 Cons

  • CL18 primary timings are relatively loose for DDR4-3600; competing kits at 3600MHz CL16 offer tighter latency at a price premium, and the difference is measurable in latency-sensitive workloads.
  • Dual-rank 32GB modules can stress memory controllers on some motherboards, potentially requiring lower XMP speeds or sub-timing relaxation to achieve stable operation — especially with all four DIMM slots populated.
  • Black heatspreader with no RGB means this kit doesn't satisfy builds where lighting aesthetics are a priority without adding separate solutions.
  • At 64GB capacity, this kit represents diminishing returns for pure gaming rigs where even 32GB exceeds current game requirements by a wide margin.

Frequently Asked Questions

It requires XMP (Intel) or DOCP/EXPO (AMD) to be enabled in BIOS. At stock JEDEC settings, the kit will default to DDR4-2133 or DDR4-2400. Enabling XMP Profile 1 in BIOS unlocks the rated 3600MHz at 1.35V with CL18 timings automatically.
CL18 at 3600MHz gives a primary latency of approximately 10 nanoseconds — comparable to CL16 at 3200MHz. For workstation and general compute workloads, the bandwidth gain from 3600MHz offsets the slightly looser CAS timing. For AMD Ryzen platforms specifically, 3600MHz aligns with the Infinity Fabric's optimal 1:1 ratio, making this kit particularly well-suited to Zen 2 and Zen 3 builds.
High-capacity dual-rank 32GB modules can be more demanding on memory controllers than lighter 8GB or 16GB sticks. Most X570 and Z490 motherboards support this configuration, but achieving full 3600MHz stability on all four DIMM slots simultaneously may require relaxing sub-timings on some boards. Consulting your motherboard's QVL is recommended before purchase.
At 34mm, this is one of the lowest-profile DDR4 kits available. Most tower air coolers and all-in-one liquid coolers will clear this height without issue, including large coolers like the Noctua NH-D15 that can conflict with taller RAM. Small-form-factor ITX builds benefit most from this constraint.
For gaming, 64GB provides no measurable performance advantage over 32GB currently. The benefit is in content creation — video editing with large timelines, virtual machines, RAM-heavy 3D rendering, or simultaneous multi-application workflows where 32GB can be fully consumed, causing system slowdowns from pagefile usage.